A5026866899- Soil Management and Crop Yield
- Growth and nutrition in plants
- Plant Micronutrient Interactions and Effects
- Sunflower and Safflower Cultivation
- Soybean genetics and cultivation
- Crop Yield and Soil Fertility
- Weed Control and Herbicide Applications
- Rural Development and Agriculture
- Agricultural and Food Sciences
- Banana Cultivation and Research
- Agronomic Practices and Intercropping Systems
- Agricultural Science and Fertilization
- Selenium in Biological Systems
- Clay minerals and soil interactions
- Sesame and Sesamin Research
- Aluminum toxicity and tolerance in plants and animals
- Soil Carbon and Nitrogen Dynamics
- Silicon Effects in Agriculture
- Agriculture Sustainability and Environmental Impact
- Peanut Plant Research Studies
- Pesticide and Herbicide Environmental Studies
- Plant nutrient uptake and metabolism
- Magnetic and Electromagnetic Effects
- Cassava research and cyanide
- Environmental and biological studies
Brazilian Agricultural Research Corporation
2011-2024
Massachusetts General Hospital
2022-2024
Instituto Tecnológico de Oaxaca
2015
Instituto de Recursos Naturales y Agrobiología de Sevilla
1992
Este trabalho teve como objetivo estabelecer curvas de acúmulo macronutrientes na cultura do girassol. Para isso, foi instalado um experimento em campo sobre Latossolo Vermelho distroférrico textura muito argilosa, localizado fazenda experimental da Embrapa Soja, Londrina/PR. As parcelas foram constituídas 14 linhas com 25 m comprimento cada e espaçamento entrelinhas 0,70 m, resultando área total 245 m². Cada parcela repetida quatro vezes. A adubação semeadura 300 kg ha-1 fórmula 5-20-20,...
Sunflower is one of the most important oilseed crops in world, since its grains have high oil content (38% to 50%), primarily used for production quality oil. The sunflower increases supply protein meal animal feeding, which enables increase production, more specifically meat, eggs and milk. Grain systems Brazil peculiarities, two three different are grown a special arrangement, same area year. Notwithstanding small cultivated 62.3 thousand hectares, succession or rotation with other grain...
O objetivo deste trabalho foi avaliar o efeito residual de rochas brasileiras aplicadas como fertilizantes e corretivos do solo. experimento conduzido em Neossolo Quartarênico cultivado com soja sucessão ao girassol sob condições casa vegetação, delineamento experimental inteiramente casualizado, quatro repetições. Os tratamentos consistiram cinco (brecha alcalina, arenito vulcânico, carbonatito, biotita xisto ultramáfica alcalina) doses correspondentes fornecimento 150 mg kg-1 K2 tendo...
Objetivo: Compreender a saúde mental de cuidadores pacientes oncológicos. Métodos: Trata-se um estudo qualitativo, desenvolvido sob o olhar da Fenomenologia Existencial. O foi realizado em Hospital Universitário localizado Belém-PA. A população desse composta por 26 tratamento oncológico quimioterápico e radioterápico, ambos os sexos, com idade mínima 18 anos, alfabetizados principais responsáveis pelo paciente durante seu tratamento. coleta dados se deu meio abordagem do público-alvo para...
Com este trabalho, objetivou-se estudar sob condições de casa-de-vegetação, o efeito da interação doses boro e estresse hídrico na produção matéria seca total, aquênios conteúdo óleo em girassol cultivado Latossolo Vermelho Amarelo distrófico textura média. O delineamento experimental utilizado foi blocos ao acaso, esquema fatorial 4 x 4, com quatro repetições. Foram estudadas B: 0, 0,25, 0,5 2,0 mg kg-1, aplicado forma ácido bórico fases controle umidade: sem durante ciclo, a partir do...
In comparison with other micronutrients, the levels of nickel (Ni) available in soils and plant tissues are very low, making quantification difficult. The objective this paper is to present optimized determination methods Ni availability by extractants total content for routine commercial laboratory analyses. Samples natural agricultural were processed analyzed Mehlich-1 extraction DTPA. To quantify tissues, samples digested nitric acid a closed system microwave oven. measurement was...
O objetivo deste trabalho foi realizar um levantamento das plantas daninhas infestantes na précolheita da cultura de girassol em lavouras dos municípios do sudoeste goiano (Chapadão Céu, Jataí e Montividiu) Chapadão Sul, MS. Foram amostradas, no período maio a junho 2002, 51 propriedades quatro municípios, totalizando uma área 583 m². As espécies foram identificadas contadas mediante aplicação quadrado 1,0x1,0 m, colocado ao acaso dentro ocupada pelas lavouras. obtidos os valores freqüência,...
Soybean is an important crop for the Brazilian economy, and soil acidity one of main yield-limiting factors in Oxisols. A field experiment was conducted during three consecutive years with objective to determine soybean response liming grown on Liming rates used were 0, 3, 6, 12, 18 Mg ha−1. significantly increased grain yield a quadratic trend. Ninety percent maximum economic (2900 kg ha−1) achieved application about 6 lime Shoot dry weight, number pods per plant, 100-grain weight also...
Most studies in the literature regarding uptake of micronutrients [zinc (Zn), manganese (Mn), iron (Fe), copper (Cu) and boron (B) accumulation] by sunflower are old. For this reason, work is aimed to establish curves micronutrient accumulation tropical edaphoclimatic conditions. The experiment was conducted field on Rhodic Eutrudox, located at experimental farm Embrapa Soja Londrina-PR, using commercial hybrid BRS 191. design completely randomized, with four replicates. units consisted 14...
Dois experimentos foram conduzidos na Embrapa Soja, Londrina-PR, com o objetivo de avaliar os efeitos diferentes períodos interferência plantas daninhas sobre rendimento óleo e a produtividade da cultura do girassol. O delineamento experimental foi blocos casualizados, quatro repetições. Os consistiram em manter presença ausência das espécies por 7, 14, 21, 28, 42, 49, 56, 70, 84 118 dias após emergência (DAE) (total ciclo). A comunidade infestante existente área era composta,...
O experimento foi conduzido com a cultura de girassol, em Latossolo Roxo eutrófico, durante as safras 91/92, 92/93 e 93/94. Avaliou-se o efeito das doses 0; 30; 60 90 kg ha-1 nitrogênio (N) dos métodos aplicação deste nutriente 1. incorporado/aiveca (aplicado lanço incorporado arado aiveca 30 cm profundidade antes da semeadura); 2. incorporado/grade grade disco preparação do leito 3. incorporado/grade/parcelado (30% N aplicado semeadura e, dias após emergência plantas, os 70% restantes...
Abstract Highly weathered soils from humid tropics naturally have low contents of available potassium (K) to plants. Under these conditions, the K deprivation can change equilibrium among cations in soil and nutritional status some crops as soybean ( Glycine max (L.) Merrill). A field experiment related fertilisation, spring diverse species fall/winter crops, such wheat Triticum aestivum L.), corn Zea mays sunflower Helianthus annuus L.) or oat Avena strigosa has been carried out Southern...
Several lines of preclinical evidence indicate that combining PI3K and CDK4/6 inhibitors may further enhance the efficacy hormonal therapy by overcoming de novo acquired resistance to blockade. We evaluated combination abemaciclib, letrozole LY3023414 (an orally available, selective inhibitor class I isoforms mTORC1/2) in recurrent endometrial cancer (EC). This study was terminated prematurely after 5 patients initiated protocol due discontinuation development LY3023414. report our findings...
The deficiency or excess of micronutrients has been determined by analyses soil and plant tissue. In Brazil, the lack studies that would define standardize extraction determination methods, as well correlation calibration studies, makes it difficult to establish limits concentration classes for analysis interpretation fertilizer recommendations crops. A specific extractor is sometimes chosen due ease use in laboratory not view its efficiency determining a bioavailable nutrient. objectives...
Lack of potassium (K) fertilization can affect the nutrient reserve in soil and soybean [ Glycine max (L.) Merrill] yield humid tropical agroecosystems. The effects K management pools nutrition is best evaluated by taking samples from long‐term experiments. aim this study was to investigate changes as a result fertilizer deprivation an Oxisol under no‐till. Soil were collected field experiment started 1983 southern Brazil. Non‐exchangeable contents extracted boiling HNO 3 , whereas...
The objective of this work was to establish a calibration equation and estimate the efficiency near-infrared reflectance (NIR) spectroscopy for evaluating rapeseed oil content in Southern Brazil. Spectral data from 124 half-sib families were correlated with contents determined by chemical method. accuracy verified coefficient determination (R²) 0.92, error (SEC) 0.78, performance (SEP) 1.22. ten genotypes, which not included NIR, similar one obtained standard NIR is adequate differentiate genotypes.